/Engine/Source/Runtime/RHI/Public/RHI.h
FRenderTarget &40; EBlendOperation InColorBlendOp, EBlendFactor InColorSrcBlend, EBlendFactor InColorDestBlend, EBlendOperation InAlphaBlendOp, EBlendFactor InAlphaSrcBlend, EBlendFactor InAlphaDestBlend, EColorWriteMask InColorWriteMask &41;